Faraday is the inventor of the electric motor and the discoverer of electromagnetic induction, it is on it that the principle of action of our future lamp is based. What is the difference between this lamp and others, and why does it have a personal name? Everything is simple. This flashlight does not need batteries at all, it is completely based on an alternative power source, electromagnetic induction. In order for our lantern to emit light - just shake it, and in the lantern itself a generator and a rechargeable battery are installed, which accumulates energy from the “shaking”. To better understand the essence of the device, you need to familiarize yourself with the picture, it intuitively shows how everything is located, and you can also understand the essence of the work.
Actually, the electricity supplied to the diode bridge becomes constant accumulating in 3 volt batteries.
If you look at a flashlight without a housing, you will notice a solenoid, a magnet in the shape of a cylinder, rubber stops, a board with diodes, a switch and batteries (in principle, a flashlight can work without it, but then it will have to be shaken constantly).
The composition of the materials of our lantern.
Such a flashlight can be made from anything, even from a box for ticks, and an ordinary ballpoint pen, or rather its hollow tube, can serve as a tube for winding wire. The next item is a little more difficult to get, the author took magnets from the hard drive, but in principle any strong small magnets will do. In theory, in any electrical store you can find cheap powerful magnets of rubles at 30 apiece. Instead of batteries, you can use capacitors on a budget. Also, a couple of LEDs are needed for beauty. Well, the circuit, where would it be without her.
The author of this device pays special attention to the fact that there is one important detail-feature in the coil winding: although you most likely noticed this from the diagram, the coil consists of two windings, and its total length is about 40 mm. Mentally divide the column of the coil into two halves. In the first half, it is necessary to wind 600 coils with a very thin wire, its diameter should be somewhere 0.08 mm. Repeat the same operation on the second half of the flashlight coil.After doing this you will get the coil for the device consisting of two sections.
Continue to collect the flashlight according to the scheme, you will receive a finished product - good luck.
And be sure to install the stops, they are necessary so as not to damage the "packaging" of the lamp, as well as for faster movement of the magnets during the "shaking". After all, the better the magnets move, the faster the energy accumulates. And this in turn means that you have to spend less effort. And therefore, you still have a lot of energy left to create new interesting and funny devices. Good luck and success!